czechhta.cz - robtex.com
czechhta.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2001:1568::14🇨🇿 WEB4U2001:1568::/33 | ||||||
| PTR | php7.web4u.cz | ||||||
| A | 81.91.86.14🇨🇿 WEB4U81.91.80.0/21 | ||||||
| NS | ns.forpsi.net ⭐ | ||||||
| A | 2001:15e8:101:1::c282🇨🇿 INTERNET-CZ2001:15e8::/32 | ||||||
| PTR | ns.forpsi.net | ||||||
| A | 81.2.194.130🇨🇿 INTERNET-CZ81.2.192.0/18 INTERNET CZ, a.s. | ||||||
| PTR | ns.forpsi.net | ||||||
| NS | ns.forpsi.cz | ||||||
| A | 2001:15e8:201:1::d1b9🇨🇿 INTERNET-CZ2001:15e8::/32 | ||||||
| PTR | ns.forpsi.cz | ||||||
| A | 81.2.209.185🇨🇿 INTERNET-CZ81.2.209.0/24 | ||||||
| PTR | ns.forpsi.cz | ||||||
| NS | ns.forpsi.it | ||||||
| A | 2a00:6d41:2:1::5🇮🇹 ARUBA-ASN2a00:6d41::/32 Aruba S.p.A. IPv6 Network | ||||||
| PTR | ns.forpsi.it | ||||||
| A | 95.110.254.165🇮🇹 ARUBA-ASN95.110.192.0/18 Aruba S.p.A. Network | ||||||
| PTR | host165-254-110-95.serverdedicati.aruba.it | ||||||
| MX | mx.web4u.cz ⭐ | ||||||
| A | 2001:1568::7012🇨🇿 WEB4U2001:1568::/33 | ||||||
| PTR | mx.web4u.cz | ||||||
| A | 81.91.87.12🇨🇿 WEB4U81.91.80.0/21 | ||||||
| PTR | mx.web4u.cz | ||||||
| TXT | v=spf1 include:_spf.web4u.cz ~all | ||||||
| SOA | ns.forpsi.netadmin@forpsi.com 2026-08-03 #1 | ||||||
cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.ns.nic.cz ⭐ | ||||||
| NS | b.ns.nic.cz | ||||||
| NS | c.ns.nic.cz | ||||||
| NS | d.ns.nic.cz | ||||||
| SOA | a.ns.nic.czhostmaster@nic.cz serial=1786342640 | ||||||
Same first word
czechhta.cz |
Similar names
DNS History
8 records (6 active, 2 former)
●NSns.forpsi.net2015-06-19 → 2026-08-10 · 2 obs
● 2026-08-10 07:03:24
○MXdev.czechhta.cz2015-06-19 → 2017-05-23 · 4 obs
● 2017-05-23 17:52:26
○ 2026-03-18 08:49:46
○ 2026-08-10 07:03:24
●MXmx.web4u.cz2026-03-18 → 2026-08-10 · 3 obs
● 2026-03-18 08:49:46
● 2026-08-10 07:03:24
○A147.32.230.122015-06-19 → 2017-05-23 · 4 obs
● 2017-05-23 17:52:26
○ 2026-03-18 08:49:46
○ 2026-08-10 07:03:24
●A2001:1568::142026-03-18 → 2026-08-10 · 3 obs
● 2026-03-18 08:49:46
● 2026-08-10 07:03:24
●A81.91.86.142026-03-18 → 2026-08-10 · 3 obs
● 2026-03-18 08:49:46
● 2026-08-10 07:03:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| czechhta.cz | ns.forpsi.cz, ns.forpsi.it, ns.forpsi.net | 2 records |
✅ Authoritative Response
Server:81.2.209.185
NS records: ns.forpsi.cz, ns.forpsi.it, ns.forpsi.net
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1664ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.91.86.14 |
| AAAA | 1 | 2001:1568::14 |
| NS | 3 | ns.forpsi.cz, ns.forpsi.it... |
| MX | 1 | mx.web4u.cz (pri: 10) |
| TXT | 1 | v=spf1 include:_spf.web4u.cz ~all |
| SOA | 1 | ns.forpsi.net admin.forpsi.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns.forpsi.cz, ns.forpsi.cz)
Analysis
IP Addresses
czechhta.cz directs to two IP numbers, 81.91.86.14 and 2001:1568::14
nivo.cz, wecoma.eu, 321health.net and two other host names share IP numbers with czechhta.cz.
Name Servers
The authoritative name servers for czechhta.cz are ns.forpsi.cz, ns.forpsi.it and ns.forpsi.net — three in total.
czechhta.cz has at least partial name server overlap with other domains, such as cztuning.cz, hotelcaramel.hu, berndorf-baederbau.sk and two others.
It is common to find these name servers paired with the name servers ns.forpsi.us.
ns.forpsi.cz, ns.forpsi.it and ns.forpsi.net all resolve to exactly two IP numbers apiece: ns.forpsi.cz → 81.2.209.185 and 2001:15e8:201:1::d1b9; ns.forpsi.it → 95.110.254.165 and 2a00:6d41:2:1::5; ns.forpsi.net → 81.2.194.130 and 2001:15e8:101:1::c282.
Mail Servers
Mail for czechhta.cz is handled by a single mail server, mx.web4u.cz.
czechhta.cz uses an identical mail server configuration to several other domains — among them lusito.eu, regency-fire.eu, 1618.cz and two more.
At least some of czechhta.cz's mail servers are shared with other domains, among them elubra.cz, ssrkunice.cz and biza.info.
mx.web4u.cz has two IP addresses: 81.91.87.12 and 2001:1568::7012.